1. 1) 鉄と鉄鋼がわかる本,新日本製鉄編著,日本実業出版,東京,(2004), 60.
2. 2) K. Mochiki, K. Nonami, K. Nishinari and M. Yamashita: Bull. Iron Steel Inst. Jpn., 16(2011), 120.
3. 3) M. Shioya, Y. Yaji, S. Nagata, T. Uragami and H. Iguchi: CAMP-ISIJ, 22(2009), 346, CD-ROM.
4. 4) T. Hayashi, S. Fukumura and A. Orita: The Operations Research Society of Japan, (1998), 54.
5. 5) H. Inoue: The Operations Research Society of Japan, (1983), 71.